private void RefreshGridView()
        {
            int count_done         = dgTemp.Rows.Count;
            int count_of_questions = QB.GetCount_of_Question(bank_id);
            int score_id           = 0;

            double score = double.Parse(txtTempPoin.Text) / count_of_questions;

            if (count_done == 0)
            {
                DialogResult dr = MessageBox.Show("FINISH. Your Score : " + score, "INFORMATION", MessageBoxButtons.OK, MessageBoxIcon.Information);
                if (dr == DialogResult.OK)
                {
                    timer1.Stop();
                    this.Close();
                    if (temp_score_id != 0)
                    {
                        score_id = int.Parse(SC.Get_User_Id(temp_score_id));
                        FormQuis FQ = new FormQuis(score_id);
                        FQ.ShowDialog();
                        FQ.RefreshGridView();
                    }
                    else
                    {
                        int      temp_user_id = Convert.ToInt32(SC.Get_User_Create(bank_id));
                        FormBank FB           = new FormBank(temp_user_id);
                        FB.ShowDialog();
                    }
                }
            }
        }
        private void btnClose_Click(object sender, EventArgs e)
        {
            double count_question = QB.GetCount_of_Question(int.Parse(txtID.Text));
            double score          = double.Parse(txtTempPoin.Text) / count_question;

            DialogResult dr = MessageBox.Show("Are You Sure to End this Question?", "QUESTION", MessageBoxButtons.YesNo, MessageBoxIcon.Question);

            if (dr == DialogResult.Yes)
            {
                this.Close();
                if (temp_score_id != 0)
                {
                    SC.SaveScore(score, Get_Finish_Time(), temp_score_id);

                    int      score_id = int.Parse(SC.Get_User_Id(temp_score_id));
                    FormQuis FQ       = new FormQuis(score_id);
                    FQ.ShowDialog();
                    FQ.RefreshGridView();
                }
                else
                {
                    int      temp_user_id = Convert.ToInt32(SC.Get_User_Create(bank_id));
                    FormBank FB           = new FormBank(temp_user_id);
                    FB.ShowDialog();
                }
            }
        }